LTC2631CTS8-LZ10#TRMPBF

Overview

The LTC2631CTS8-LZ10#TRMPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It integrates a precision reference with a temperature coefficient of 10ppm/°C and operates from a single 2.7V to 5.5V supply. The device features a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. This specific variant includes a power-on reset circuit configured to clear the output to zero-scale upon initialization.

Feature Summary

• 10-bit resolution with maximum Integral Nonlinearity (INL) error of ±1 LSB
• Integrated 10ppm/°C reference providing a 2.5V full-scale output
• I²C interface with selectable slave addresses via CA0 and CA1 pins
• Power-on reset function defaults output to zero-scale

Applications

• Mobile communications
• Process control and industrial automation
• Portable equipment
• Automotive systems

Procurement Notes

Verify the complete part number including the #TRMPBF suffix to confirm the 500-unit tape and reel packaging configuration. Ensure the C-grade commercial temperature range (0°C to 70°C) aligns with system requirements. Confirm that the zero-scale power-on reset behavior meets the application's startup safety criteria before finalizing procurement.

Selection Notes

Select this component for applications requiring a compact 8-lead TSOT-23 package and low power consumption of approximately 180µA at 3V. Choose the LZ10 designation specifically when a zero-scale power-on reset state is required rather than mid-scale. Verify that the 2.7V to 5.5V supply range covers the system's operating voltage, as the H-grade variants require higher minimum voltages.

Part Context

This part belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'C' indicates the commercial temperature grade, while 'L' specifies the 2.5V internal reference full-scale voltage. The 'Z' suffix denotes the zero-scale power-on reset option, distinguishing it from 'M' variants that reset to mid-scale.

Replacement Considerations

Direct replacements within the same family include LTC2631ITS8-LZ10#TRMPBF for industrial temperature range or LTC2631HTS8-LZ10#TRMPBF for automotive range. For different resolutions, consider LTC2631CTS8-LZ12#TRMPBF (12-bit) or LTC2631CTS8-LZ8#TRMPBF (8-bit), ensuring INL specifications meet design constraints.